.my-toast-container {
    top: 44%;
    width: 70%;
    text-align: center;
    left: 15%;
    position: fixed;
    transition: opacity 0.3s;
    z-index: 9999 !important;
}
.my-toast-message {
    font-size: 16px;
    padding: 0.4rem 0.6rem;
    text-align: center;
    color: #000;
    border-radius: 10px;
    background-color: #FFF;
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
    -webkit-justify-content: center;
}
.my-toast-message img {
    height: 18px;
    margin-right: 10px;
}
/* 用伪元素做遮罩 */
.my-toast-active::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1; /* 放在高亮 div 下层 */
}